photoinhibitionn.
/ˌfəʊtəʊɪn(h)ᵻˈbɪʃn/, U.S. /ˈˌfoʊdoʊˌɪnəˈbɪʃ(ə)n/, /ˈˌfoʊdoʊˌɪnhəˈbɪʃ(ə)n/, /ˈˌfoʊdoʊˌɪn(h)ɪˈbɪʃ(ə)n/ Physiology.
Inhibition of a physiological process (and hence sometimes the growth of an organism) by light, esp. inhibition of photosynthesis at high levels of sunlight.
ΚΠ
1950 Bot. Gaz. 112 68 There is insufficient evidence..to permit a conclusion as to which of these two types of responses to high-temperature conditioning (photostimulation or photoinhibition of germination) is more characteristic of seeds in general.
1977 Physiol. & Behavior 18 693 (title) Induction of estrus in intact Lemur catta under photoinhibition of ovarian cycles.
2002 New Phytologist 155 349 Recent findings have shown that anthocyanins reduce photoinhibition and photobleaching of chlorophyll under light stress conditions.
This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1950